Living in Oso, WA: what to set up and who to call
Oso has no town government of its own, so Snohomish County runs its elections and most services, and its children attend Arlington School District. Power in Oso comes from PUD No 1 of Snohomish County, a political subdivision utility rather than a private company.
I’m new in town
What to set up in Oso, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Oso.
Power comes from PUD No 1 of Snohomish County
PUD No 1 of Snohomish County (PUD No 1 of Snohomish County - (WA)), a political subdivision utility, serves all of Oso. Its homes paid an average of 12.1¢ per kWh in 2025, about $113 a month (its average across Washington).
Start or move service: snopud.com · (425) 783-1000
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
4 home internet providers serve Oso
96% of 78 addresses can get 100/20 Mbps; 90% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Ziply Fiber | Fiber, DSL | 90% | 6,000/6,000 |
| Verizon | Fixed wireless | 92% | 300/20 |
| AT&T | Fixed wireless | 68% | 25/3 |
| T-Mobile | Fixed wireless | 65% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Oso’s trash rules yet
Pickup rules, the dump and recycling in Oso.
Where your child goes to school
Public school districts and the school path by grade.
Oso is in Arlington School District.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Oso is unincorporated, so Snohomish County is the local government.
Election office: FVAP local election office directory, updated Sep 2022; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Oso is in ZIP code 98223
ZIP codes where Oso residents live, with the share of the town in each.
| ZIP | Post office name | Share of Oso | ZIP’s residents in Oso |
|---|---|---|---|
| 98223 | Arlington, WA | 100% | 0% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Oso
Who provides electricity in Oso?
PUD No 1 of Snohomish County (PUD No 1 of Snohomish County - (WA)), a political subdivision utility. Its homes paid about 12.1¢ per kWh in 2025 (EIA).
What internet providers serve Oso?
Ziply Fiber, Verizon, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Oso?
98223. Census 2020 ZIP Code Tabulation Areas.
What school district is Oso in?
Arlington School District.
How do I register to vote in Oso?
In Washington you can register online until 8 days before Election Day, in person up to and including Election Day, or by mail (received 8 days before). Elections here are run by the Snohomish County Auditor. Check your registration at voter.votewa.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Sep 30, 2026 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.